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Radon Mitigation and Testing Companies in York County

There are 38 PA DEP-certified radon companies working in York County or very close by, and we’ve thoroughly researched each one. Narrow them down by ZIP code and service, then call or message the ones you like.

Showing 10 of 38 companies, A to Z. Ratings load live from Google. Listings last checked Sep 2026.

Angelucci, Thomas

Based in Stevens, PANext door: confirm they cover you
PA DEP certification#3283Checked Sep 2026
Services
Testing
No Google listing found
(717) 413-4582

Barrick, Darrell

Based in Hanover, PANext door: confirm they cover you
PA DEP certification#3623Checked Sep 2026
Services
Testing
No Google listing found
(717) 495-3600

Carrozza, Jr., Anthony

Based in Mount Joy, PANext door: confirm they cover you
PA DEP certification#2858Checked Sep 2026
Services
Testing
No Google listing found
(717) 490-1126

Cline, Jr., Joseph

Based in Mechanicsburg, PANext door: confirm they cover you
PA DEP certification#2282Checked Sep 2026
Services
Testing
No Google listing found
(717) 503-7086

Fritsch, Andrew

Based in Ephrata, PANext door: confirm they cover you
PA DEP certification#3541Checked Sep 2026
Services
Mitigation
No Google listing found
(717) 949-2011

Gress, Vanessa

Based in Adamstown, MDNext door: confirm they cover you
PA DEP certification#3608Checked Sep 2026
Services
Testing
No Google listing found
(301) 693-4089

Haney, Shawn

Based in Wrightsville, PAServes York County
PA DEP certification#3093Checked Sep 2026
Services
Testing
No Google listing found
(717) 808-2551

Heintzelman, David C.

Based in Mechanicsburg, PANext door: confirm they cover you
PA DEP certification#3532Checked Sep 2026
Services
Testing
No Google listing found
(717) 480-3357

Levine, Seymour

Based in New Cumberland, PAServes York County
PA DEP certification#2735 mitigation, #2735 testingChecked Sep 2026
Services
MitigationTesting
No Google listing found
(717) 576-9589

Matteson, Chris

Based in Hershey, PANext door: confirm they cover you
PA DEP certification#2337Checked Sep 2026
Services
Testing
No Google listing found
(717) 583-2914

Melchior, Ronald

Based in Nottingham, MDNext door: confirm they cover you
PA DEP certification#3736Checked Sep 2026
Services
Testing
No Google listing found
(443) 790-4613

Meyer, Jr., Robert

Based in Wellsville, PAServes York County
PA DEP certification#1800 mitigation, #1800 testingChecked Sep 2026
Services
MitigationTesting
No Google listing found
(717) 432-9575

Muehling, Matthew

Based in Elizabethtown, PANext door: confirm they cover you
PA DEP certification#2795Checked Sep 2026
Services
Testing
No Google listing found
(717) 330-5658

O'Connor, John

Based in Keymar, MDNext door: confirm they cover you
PA DEP certification#3361Checked Sep 2026
Services
Testing
No Google listing found
(443) 340-7880

Pickholtz, Jerry

Based in Westminster, MDNext door: confirm they cover you
PA DEP certification#3267Checked Sep 2026
Services
Testing
No Google listing found
(443) 605-6030

Risk, Douglas

Based in Peach Bottom, PANext door: confirm they cover you
PA DEP certification#3599Checked Sep 2026
Services
Testing
No Google listing found
(717) 519-7845

Ro, Jooik

Based in Carlisle, PANext door: confirm they cover you
PA DEP certification#2760 mitigation, #2760 testingChecked Sep 2026
Services
MitigationTesting
No Google listing found
(717) 226-7179

Schmidt III, Wolfgang

Based in Quarryville, PANext door: confirm they cover you
PA DEP certification#3743Checked Sep 2026
Services
Testing
No Google listing found
(717) 290-6777

Sipe, Steven

Based in Halifax, PANext door: confirm they cover you
PA DEP certification#3287 mitigation, #3287 testingChecked Sep 2026
Services
MitigationTesting
No Google listing found
(717) 425-0989

Stansbury, Michael

Based in Emmitsburg, MDNext door: confirm they cover you
PA DEP certification#3334Checked Sep 2026
Services
Mitigation
No Google listing found
(443) 280-2091

Unger, Isaiah

Based in York, PAServes York County
PA DEP certification#3674Checked Sep 2026
Services
Testing
No Google listing found
(410) 357-1124

Wentz, Brian

Based in Harrisburg, PANext door: confirm they cover you
PA DEP certification#2829Checked Sep 2026
Services
Testing
No Google listing found
(717) 540-5970

Questions to Ask When You Call

Ask every company the same questions, then compare their answers.

How to choose a radon mitigation company
Have you worked on homes like mine?Foundation type, a finished basement or a private well can change the job.
Will you get my level under 4.0?Ask if they guarantee it in writing, and what happens if they don’t.
Do you have warranty cover, and for how long?Ask about the system and the fan separately.
Who does the test after the install?By law it has to be done within 30 days. Ask if it’s included.
Where will the pipe and fan go?Inside or outside the house, and where you’ll see the pipe.

Your Home Must Be Tested After Install

By law in Pennsylvania, your home has to be tested between 24 hours and 30 days after the system is switched on. Your installer is responsible for making sure it’s done, so ask each company if it’s included in their price.

Find an independent radon tester

Sources: PA DEP Radon Services Directory; PA DEP: Pennsylvania Consumer's Guide to Radon Reduction; PA DEP fact sheet: Radon Mitigation Systems (2940-FS-DEP4430); 25 Pa. Code § 240.303, Responsibilities of mitigators